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How to Cook One Box of Spaghetti Noodles in Your Instant Pot!

How to Cook One Box of Spaghetti Noodles in Your Instant Pot!

By Mona - Far From The Farm
May 15, 2026
Learn how to cook spaghetti noodles perfectly in your Instant Pot with this easy no-mess method for busy weeknights! 
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Makes: 6 (4-6 servings)
Approximate cost $1.50
Prep Time 2 minutes
Cook Time 5 minutes
Additional Time 10 minutes
Total Time 17 minutes
Servings: 6 (4-6 servings)
Course: Dinner, Pasta
Cuisine: Italian, Pasta
Calories: 280

Ingredients
  

  • 1 lb pot-sized spaghetti noodles - (16 oz / 454g)
  • 4 cups water - (32 fl oz / 946ml)

Equipment

  • Instant Pot 6 or 8 qt pressure cooker
  • Measuring jug
  • Silicone spatula
  • colander

Method
 

  1. Add the dry spaghetti noodles into the insert of your Instant Pot.
    If using regular spaghetti noodles instead of pot-sized noodles, snap them in half first.
    Pour over the water, spreading the noodles into a loose crisscross pattern and ensuring they are underneath the water.
  2. Secure the lid and turn the valve to SEAL.
  3. Cook on HIGH pressure for 4 minutes for fully cooked spaghetti.
  4. As soon as the cooking cycle finishes, carefully perform a QUICK RELEASE.
  5. Once the pressure pin drops, open the lid and immediately stir the spaghetti noodles to help separate them while still hot.
  6. Drain using a colander.
  7. Serve immediately with butter, marinara sauce, parmesan, Alfredo sauce, garlic butter, olive oil, or your favorite pasta toppings.

Video

Notes

  • Pot-sized spaghetti noodles work especially well in the Instant Pot.
  • Regular spaghetti noodles can simply be snapped in half.
  • Different brands may cook slightly differently.
  • Immediate stirring helps prevent sticking.
  • This method works beautifully for meal prep.

 

Storage:

  • Store leftover spaghetti in an airtight container in the refrigerator for up to 4 days.
  • Toss leftovers with a small drizzle of olive oil before refrigerating if desired to help reduce sticking.
  • Reheat in the microwave with a splash of water or sauce.
 

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Nutrition

Calories: 280kcalCarbohydrates: 56gProtein: 10gFat: 1gSaturated Fat: 0.2gPolyunsaturated Fat: 0.4gMonounsaturated Fat: 0.1gSodium: 12mgPotassium: 169mgFiber: 2gSugar: 2gCalcium: 21mgIron: 1mg

Nutrition information is automatically calculated, so should only be used as an approximation.